Override URL or IP address

Cloudflare Page Rules allows you to override the URL or IP address of a request. This feature is currently available for domains on the Enterprise plan.

A common use case for this functionality is when you are serving an application from a particular URI (mydomain.com/app). In this case, the app may live on another server and may even be hosted by a third party. Requests to this endpoint must be directed to the server for that third party application. You can specify a CNAME host.

To make sure you have full control of these records, it is recommended that you set the Resolve Override within the same zone name.

To configure a resolve override in Page Rules, do the following:

1. Create a DNS record (either CNAME or A record) for your domain.

   • This example shows a CNAME record setup to point to domain.s3.amazonaws.com.

     • Type: CNAME
     • Name: resolve.example.com
     • Target: domain.s3.amazonaws.com
     • TTL: Auto
     • Proxy status: Proxied

   • This example uses an A record to point to a web server IP address.

     • Type: A
     • Name: resolve.example.com
     • IPv4 address: 1.2.3.4
     • TTL: Auto
     • Proxy status: Proxied

2. Create a page rule to override a URL or an IP address.

   The following example page rule configuration would send all requests from a folder (/app) to an AWS S3 bucket:

   • If the URL matches: example.com/app/*
   • Setting: Resolve Override | Value: resolve.example.com
   • Setting: Host Header Override | Value: examplebucket.s3.amazonaws.com